People, people, people! Get over the reprogramming and hacking thing. The electronics are IRRELEVANT! These are electro-mechanical devices. Once the electro is removed, destroyed, punched out with a hammer you are left with a MECHANICAL device! Anyone who has the firearm and a few spare minutes can set the mechanical to work without the electronics. The devices are good for preventing immediate use by unauthorized persons as long as the activating part is secured, but beyond that they are vulnerable. Smart guns will not deter theft or curious youngsters with an ounce of intelligence. I expect that once any of these devices come to market Youtube will be flooded with videos on the details of how to eliminate (not hack or reprogram) the electronics and work the mechanical linkage. Personally, I prefer taking active steps to secure firearms in a standard safe and have total control over my firearm at all times.